Boeing 737

What is ELEV on Boeing 737? (Elevator)

What is RAT on Boeing 737? (Ram Air Turbine)

What is TDL on Boeing 737? (Time Delay Logic)

What is FQIS on Boeing 737? (Fuel Quantity Indication System)

What is F/O on Boeing 737? (First Officer)

What is TTG on Boeing 737? (Time To Go)

What is LRU on Boeing 737? (Line Replaceable Unit)

What is PRI on Boeing 737? (Primary)

What is IRS on Boeing 737? (Inertial Reference System)